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- {"ast":null,"code":"import toDate from \"../toDate/index.js\";\nimport differenceInCalendarISOWeekYears from \"../differenceInCalendarISOWeekYears/index.js\";\nimport compareAsc from \"../compareAsc/index.js\";\nimport subISOWeekYears from \"../subISOWeekYears/index.js\";\nimport requiredArgs from \"../_lib/requiredArgs/index.js\";\n/**\n * @name differenceInISOWeekYears\n * @category ISO Week-Numbering Year Helpers\n * @summary Get the number of full ISO week-numbering years between the given dates.\n *\n * @description\n * Get the number of full ISO week-numbering years between the given dates.\n *\n * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date\n *\n * @param {Date|Number} dateLeft - the later date\n * @param {Date|Number} dateRight - the earlier date\n * @returns {Number} the number of full ISO week-numbering years\n * @throws {TypeError} 2 arguments required\n *\n * @example\n * // How many full ISO week-numbering years are between 1 January 2010 and 1 January 2012?\n * const result = differenceInISOWeekYears(\n * new Date(2012, 0, 1),\n * new Date(2010, 0, 1)\n * )\n * //=> 1\n */\nexport default function differenceInISOWeekYears(dirtyDateLeft, dirtyDateRight) {\n requiredArgs(2, arguments);\n var dateLeft = toDate(dirtyDateLeft);\n var dateRight = toDate(dirtyDateRight);\n var sign = compareAsc(dateLeft, dateRight);\n var difference = Math.abs(differenceInCalendarISOWeekYears(dateLeft, dateRight));\n dateLeft = subISOWeekYears(dateLeft, sign * difference);\n\n // Math.abs(diff in full ISO years - diff in calendar ISO years) === 1\n // if last calendar ISO year is not full\n // If so, result must be decreased by 1 in absolute value\n var isLastISOWeekYearNotFull = Number(compareAsc(dateLeft, dateRight) === -sign);\n var result = sign * (difference - isLastISOWeekYearNotFull);\n // Prevent negative zero\n return result === 0 ? 0 : result;\n}","map":{"version":3,"names":["toDate","differenceInCalendarISOWeekYears","compareAsc","subISOWeekYears","requiredArgs","differenceInISOWeekYears","dirtyDateLeft","dirtyDateRight","arguments","dateLeft","dateRight","sign","difference","Math","abs","isLastISOWeekYearNotFull","Number","result"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/date-fns/esm/differenceInISOWeekYears/index.js"],"sourcesContent":["import toDate from \"../toDate/index.js\";\nimport differenceInCalendarISOWeekYears from \"../differenceInCalendarISOWeekYears/index.js\";\nimport compareAsc from \"../compareAsc/index.js\";\nimport subISOWeekYears from \"../subISOWeekYears/index.js\";\nimport requiredArgs from \"../_lib/requiredArgs/index.js\";\n/**\n * @name differenceInISOWeekYears\n * @category ISO Week-Numbering Year Helpers\n * @summary Get the number of full ISO week-numbering years between the given dates.\n *\n * @description\n * Get the number of full ISO week-numbering years between the given dates.\n *\n * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date\n *\n * @param {Date|Number} dateLeft - the later date\n * @param {Date|Number} dateRight - the earlier date\n * @returns {Number} the number of full ISO week-numbering years\n * @throws {TypeError} 2 arguments required\n *\n * @example\n * // How many full ISO week-numbering years are between 1 January 2010 and 1 January 2012?\n * const result = differenceInISOWeekYears(\n * new Date(2012, 0, 1),\n * new Date(2010, 0, 1)\n * )\n * //=> 1\n */\nexport default function differenceInISOWeekYears(dirtyDateLeft, dirtyDateRight) {\n requiredArgs(2, arguments);\n var dateLeft = toDate(dirtyDateLeft);\n var dateRight = toDate(dirtyDateRight);\n var sign = compareAsc(dateLeft, dateRight);\n var difference = Math.abs(differenceInCalendarISOWeekYears(dateLeft, dateRight));\n dateLeft = subISOWeekYears(dateLeft, sign * difference);\n\n // Math.abs(diff in full ISO years - diff in calendar ISO years) === 1\n // if last calendar ISO year is not full\n // If so, result must be decreased by 1 in absolute value\n var isLastISOWeekYearNotFull = Number(compareAsc(dateLeft, dateRight) === -sign);\n var result = sign * (difference - isLastISOWeekYearNotFull);\n // Prevent negative zero\n return result === 0 ? 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